Re: strange issue with postfix

2020-10-01 Thread Bob Proulx
Ranjan Maitra wrote: > > > Oct 1 14:08:00 localhost postfix/smtpd[4142479]: fatal: in parameter > > > smtpd_relay_restrictions or smtpd_recipient_restrictions, specify at > > > least one working instance of: reject_unauth_destination, > > > defer_unauth_destination, reject, defer,

Re: strange issue with postfix

2020-10-01 Thread Larry Stone
> > On Oct 1, 2020, at 2:18 PM, Ranjan Maitra wrote: > > Thanks, very much. So when I hit "Send" on sylpheed, it goes on a tailspin, > and says: Connecting to SMTP server: localhost > > Looking at the /var/log/maillog as you suggested, I get: > > Oct 1 14:08:00 localhost

Re: strange issue with postfix

2020-10-01 Thread Ranjan Maitra
On Thu, 1 Oct 2020 15:39:55 -0400 "Demi M. Obenour" wrote: > On 2020-10-01 15:18, Ranjan Maitra wrote: > > Thanks, very much. So when I hit "Send" on sylpheed, it goes on a tailspin, > > and says: Connecting to SMTP server: localhost > > > > Looking at the /var/log/maillog as you suggested, I

Re: strange issue with postfix

2020-10-01 Thread Demi M. Obenour
On 2020-10-01 15:18, Ranjan Maitra wrote: > Thanks, very much. So when I hit "Send" on sylpheed, it goes on a tailspin, > and says: Connecting to SMTP server: localhost > > Looking at the /var/log/maillog as you suggested, I get: > > Oct 1 14:08:00 localhost postfix/smtpd[4142479]: fatal: in

Re: strange issue with postfix

2020-10-01 Thread Ranjan Maitra
Thanks, very much. So when I hit "Send" on sylpheed, it goes on a tailspin, and says: Connecting to SMTP server: localhost Looking at the /var/log/maillog as you suggested, I get: Oct 1 14:08:00 localhost postfix/smtpd[4142479]: fatal: in parameter smtpd_relay_restrictions or

Re: strange issue with postfix

2020-10-01 Thread IL Ka
Hi. I'd start with checking your logs (i.e. "/var/log/maillog") On Thu, Oct 1, 2020 at 10:01 PM Ranjan Maitra wrote: > Hi, > > I have an issue that I can not resolve at my work environment. > > When I use commandline mail, my e-mail gets delivered. > > However, when I use a mailer (like

strange issue with postfix

2020-10-01 Thread Ranjan Maitra
Hi, I have an issue that I can not resolve at my work environment. When I use commandline mail, my e-mail gets delivered. However, when I use a mailer (like sylpheed) to use localhost, it does not get delivered. I have SMTP port set to the default, and this same setup works fine when I send

Re: Mailrelay: wait for downstream response

2020-10-01 Thread Wietse Venema
Wietse Venema: > luc...@dds.nl: > > Hello, > > > > I am managing a Postfix mail relay service in our internal network. The > > relay itself is more permissive than the downstream SMTP server. So it > > is possible, and indeed it regularly happens, that my relay accepts a > > message which is

Re: Mailrelay: wait for downstream response

2020-10-01 Thread Wietse Venema
luc...@dds.nl: > Hello, > > I am managing a Postfix mail relay service in our internal network. The > relay itself is more permissive than the downstream SMTP server. So it > is possible, and indeed it regularly happens, that my relay accepts a > message which is subsequently bounced by the

Re: Mailrelay: wait for downstream response

2020-10-01 Thread Demi M. Obenour
On 2020-10-01 08:19, luc...@dds.nl wrote: > Hello, > > I am managing a Postfix mail relay service in our internal network. The > relay itself is more permissive than the downstream SMTP server. So it > is possible, and indeed it regularly happens, that my relay accepts a > message which is

Multiple milters - how to properly configure it ?

2020-10-01 Thread Konrad Wawryn
Hi, I would like to setup additional Milter in my Linux Appliance. The problem is, that I have already one (defined in master.cf) which is used by E-mail encryption system located on the same host. Second milter I would like to setup for Data Loss Prevention System, where E-Mail will be

Re: Accessing the sending user from a canonical(5) table

2020-10-01 Thread Wietse Venema
Jaroslaw Rafa: > X-Authentication-Warning: : set sender to > using -f If you're willing to parse headers, then all the information that you need is already available. There is no need to add yet another header with that stuff. - You already have the numerical UID in the existing Received:

Mailrelay: wait for downstream response

2020-10-01 Thread lucas2
Hello, I am managing a Postfix mail relay service in our internal network. The relay itself is more permissive than the downstream SMTP server. So it is possible, and indeed it regularly happens, that my relay accepts a message which is subsequently bounced by the downstream server. There is no

Re: Rejecting messages based on recipient MTA''s IP address

2020-10-01 Thread Allen Coates
On 01/10/2020 08:01, Ansgar Wiechers wrote: > On 2020-09-30 Allen Coates wrote: >> >> Does the SMTP daemon resolve a destination if there is no MX record? > > Normally Postfix will check for an MX first, and if that is absent check > for an A record for the domain. This is standard MTA

Re: Rejecting messages based on recipient MTA''s IP address

2020-10-01 Thread Ansgar Wiechers
On 2020-09-30 Allen Coates wrote: > On 30/09/2020 15:58, @lbutlr wrote: >> On 29 Sep 2020, at 11:46, J David wrote: >>> domains that have no email service, i.e., those domains have A >>> records in that range but no MX records at all. > > Question at a tangent:- > > Does the SMTP daemon resolve